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Charitat, Thierry

Unistra Professor



ORCID iD iconorcid.org/0000-0003-3167-6495


Tel: +(33)(0)388414005
Fax: +(33)(0)388414099
email: thierry.charitat[at]ics-cnrs.unistra.fr

Research activities


My research focuses on the study of the physical properties of soft objects: polymers, membranes ... I am interested in the physics of polymers at interfaces, both experimentally (stick-slip instability of polymer melts dynamic polyelectrolyte multilayers) and theoreticaly (mechanism of energy dissipation in friction polymer). In recent years, the central part of my work involves the study of the physical properties of lipid membranes: structure, fluctuations, destabilization and internal dynamics. In particular, as part of a collaboration with J. Daillant recent years have led to a major experimental and theoretical development to enable the study of single model membrane by diffusion of radiation. This allowed us to access for the first time the fluctuation spectrum of a single membrane in the submicron range. Finally, always in the spirit of understanding at the microscopic level the macroscopic properties of dense matter, I am recently interested in the elastic properties of a fiber system.

Teaching activities

Soft Condensed Matter M2 Spécialité Condensed Matter and Nanophysic

Statistical mechanic M1 (with G. Weick see TD here).

- Entropy, Grand-canonical ensemble;

- Quantum gas;

- Classical liquid: Correlation, Viriel development, Debye-Hückel theory;

- Phase transition and mean-field theory: liquid-gas, Ising...

- Landau theory of phase transition;

Electromagnetism (L2)

Agrégation de Physique-Option Physique

Publications

2017

Blachon, F., Harb, F., Munteanu, B., Piednoir, A., Fulcrand, R., Charitat, T., et al. (2017). Nanoroughness Strongly Impacts Lipid Mobility in Supported Membranes. Langmuir, 33(9), 2444–2453.
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2016

Fu, L., Favier, D., Charitat, T., Gauthier, C., & Rubin, A. (2016). A new tribological experimental setup to study confined and sheared monolayers. Review of Scientific Instruments, 87(3).
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Hemmerle, A., Fragneto, G., Daillant, J., & Charitat, T. (2016). Reduction in Tension and Stiffening of Lipid Membranes in an Electric Field Revealed by X-Ray Scattering. Phys Rev Lett, 116(22), 228101.
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2015

Bauer, M., Kekicheff, P., Iss, J., Fajolles, C., Charitat, T., Daillant, J., et al. (2015). Sliding tethered ligands add topological interactions to the toolbox of ligand-receptor design. Nature Communications, 6.
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Hemmerle, A., Froehlicher, G., Bergeron, V., Charitat, T., & Farago, J. (2015). Worm-like instability of a vibrated sessile drop. Epl, 111(2).
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2014

Weber, G., Charitat, T., Baptista, M. S., Uchoa, A. F., Pavani, C., Junqueira, H. C., et al. (2014). Lipid oxidation induces structural changes in biomimetic membranes. Soft Matter, 10(24), 4241–4247.
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2013

Bauer, M., Bernhardt, M., Charitat, T., Kekicheff, P., Fajolles, C., Fragneto, G., et al. (2013). Membrane insertion of sliding anchored polymers. Soft Matter, 9(5), 1700–1710.
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2012

Bauer, M., Charitat, T., Fajolles, C., Fragneto, G., & Daillant, J. (2012). Insertion properties of cholesteryl cyclodextrins in phospholipid membranes: a molecular study. Soft Matter, 8(4), 942–953.
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Fragneto, G., Charitat, T., & Daillant, J. (2012). Floating lipid bilayers: models for physics and biology. European Biophysics Journal with Biophysics Letters, 41(10), 863–874.
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Hemmerle, A., Malaquin, L., Charitat, T., Lecuyer, S., Fragneto, G., & Daillant, J. (2012). Controlling interactions in supported bilayers from weak electrostatic repulsion to high osmotic pressure. Proceedings of the National Academy of Sciences of the United States of America, 109(49), 19938–19942.
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2011

Bauer, M., Fajolles, C., Charitat, T., Wacklin, H., & Daillant, J. (2011). Amphiphilic Behavior of New Cholesteryl Cyclodextrins: A Molecular Study. Journal of Physical Chemistry B, 115(51), 15263–15270.
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2010

Malaquin, L., Charitat, T., & Daillant, J. (2010). Supported bilayers: Combined specular and diffuse X-ray scattering. Eur. Phys. J. E, 31(3), 285–301.
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2009

Scomparin, C., Lecuyer, S., Ferreira, M., Charitat, T., & Tinland, B. (2009). Diffusion in supported lipid bilayers: Influence of substrate and preparation technique on the internal dynamics. European Physical Journal E, 28(2), 211–220.
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2008

Charitat, T., Lecuyer, S., & Fragneto, G. (2008). Fluctuations and destabilization of single phospholipid bilayers. Biointerphases, 3(2), FB3–FB15.
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Jourdainne, L., Lecuyer, S., Arntz, Y., Picart, C., Schaaf, P., Senger, B., et al. (2008). Dynamics of poly(L-lysine) in hyaluronic acid/poly(L-lysine)multilayer films studied by fluorescence recovery after pattern photobleaching. Langmuir, 24(15), 7842–7847.
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2006

Lecuyer, S., & Charitat, T. (2006). From supported membranes to tethered vesicles: Lipid bilayers destabilisation at the main transition. Europhysics Lett., 75(4), 652–658.
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Lecuyer, S., Fragneto, G., & Charitat, T. (2006). Effect of an electric field on a floating lipid bilayer: A neutron reflectivity study. European Physical Journal E, 21(2), 153–159.
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2005

Daillant, J., Bellet-Amalric, E., Braslau, A., Charitat, T., Fragneto, G., Graner, F., et al. (2005). Structure and fluctuations of a single floating lipid bilayer. Proceedings Of The National Academy Of Sciences Of The United States Of America, 102(33), 11639–11644.
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2003

Beckrich, P., Weick, G., Marques, C. M., & Charitat, T. (2003). Compression modulus of macroscopic fiber bundles. Europhysics Lett., 64(5), 647–653.
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Charitat, T., & Graner, F. (2003). About the magnetic field of a finite wire. European Journal Of Physics, 24(3), 267–270.
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Fragneto, G., Charitat, T., Bellet-Amalric, E., Cubitt, R., & Graner, F. (2003). Swelling of phospholipid floating bilayers: The effect of chain length. Langmuir, 19(19), 7695–7702.
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Mecke, K. R., Charitat, T., & Graner, F. (2003). Fluctuating lipid bilayer in an arbitrary potential: Theory and experimental determination of bending rigidity. Langmuir, 19(6), 2080–2087.
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2001

Clement, F., Charitat, T., Johner, A., & Joanny, J. F. (2001). Self-assembled layers under flow: Stabilization by chain end exchange. Europhysics Letters, 54(1), 65–71.
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Fragneto, G., Bellet-Amalric, E., Charitat, T., & Graner, F. (2001). Fluid floating bilayers. Biophysical Journal, 80(1), 60.
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Fragneto, G., Bellet-Amalric, E., Charitat, T., & Graner, F. (2001). Fluid floating bilayers. Biophysical Journal, 80(1), 14A–15A.
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Fragneto, G., Charitat, T., Graner, F., Mecke, K., Perino-Gallice, L., & Bellet-Amalric, E. (2001). A fluid floating bilayer. Europhysics Lett., 53(1), 100–106.
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Leger, L., Hervet, H., Charitat, T., & Koutsos, V. (2001). The stick-slip transition in highly entangled poly( styrene-butadiene) melts. Advances In Colloid And Interface Science, 94(1-3), 39–52.
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2000

Charitat, T., & Joanny, J. F. (2000). Solid-like friction of a polymer chain. European Physical Journal E, 3(4), 369–376.
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Fragneto, G., Bellet-Amalric, E., Charitat, T., Dubos, P., Graner, F., & Perino-Galice, L. (2000). Neutron and X-Ray reflectivity studies at solid-liquid interfaces: the interaction of a peptide with model membranes. Physica B, 276, 501–502.
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Fragneto, G., Graner, F., Charitat, T., Dubos, P., & Bellet-Amalric, E. (2000). Interaction of the third helix of Antennapedia homeodomain with a deposited phospholipid bilayer: A neutron reflectivity structural study. Langmuir, 16(10), 4581–4588.
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Perino-Gallice, L., Bellet-Amalric, E., Braslau, A., Charitat, T., Daillant, J., Fragneto, G., et al. (2000). Adsorbed and free lipid bilayers at the solid-liquid interface viewed by specular and off-specular reflectivity. In Trends In Colloid And Interface Science Xiv (Vol. 115, pp. 171–173).
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1999

Charitat, T., Bellet-Amalric, E., Fragneto, G., & Graner, F. (1999). Adsorbed and free lipid bilayers at the solid-liquid interface. European Physical Journal B, 8(4), 583–593.
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1998

Charitat, T., & Fourcade, B. (1998). Metastability of a circular o-ring due to intrinsic curvature. European Physical Journal B, 1(3), 333–336.
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Marques, C. M., Izzo, D., Charitat, T., & Mendes, E. (1998). Scattering from solutions of star polymers. European Physical Journal B, 3(3), 353–358.
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1997

Charitat, T., & Fourcade, B. (1997). Lattice of passages connecting membranes. Journal De Physique Ii, 7(1), 15–35.
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